@JRE It was a 20 amp breaker that tripped at 41 amps. It was 41.6 something but I'll round it to just 41.

@JRE It was loaded to 41 amps for about 1 minute or so. (if I had to be very precise I would say it was around a minute and a little more than a half so 1 minute and 45 seconds)

@rdtsc & @JRE & @Shalvenay Thankyou for all of the information you've all given me. I hope this info helps this individual. If it doesn't then I'll be asking more follow up questions.

@rdtsc & @JRE & @Shalvenay Thankyou for all of the information you've all given me. I hope this info helps this individual. If it doesn't then I'll be asking more follow up questions. I apologize for needing to ask these dumb questions as I know questions like these shouldn't even really be asked. I'll be honest though, when this person didn't believe me and asked for proof. After I shower them proof I must have been having a major brain fart or something.

Because my brain just was having a fit.

@JRE Now that I think about the time that passed it could've easily been 3 minutes. I was in the shop and time passes in the shop like no other. So it could've easily been 3 minutes or more now that I think about it.

What are the typical rise and fall times for 1W and 3W LEDs?

Actually, what i need is graphs with rise and fall of brightness with time. So that I can make a PWM with ~10kHz.

@Fermiparadox I think you should ask on the main EE site. There's some folks there who know that kind of thing, but they don't hang out in chat.

It's very difficult for me to hear "transformer", without thinking "Robots in disguise"

@ScottSeidman . . and I am the opposite. When I hear people talking about a transformer, at first I don't realize they are speaking of robots in disguise.

@Marla My way seems less risky, as I am less likely to be surprised.

When I hear "transformer" I immediately think "volts per microsecond" and wonder if it was under-spec'd and that is the reason why it overheated and failed.

ouch

it seemed to work perfectly fine

huh, apparently an Uno running off USB outputs around 4.5V, which is just a smidge above the specs

not gonna be a problem in the final design as it'll run at 3.3V anyway, but annoying during testing...

@Fermiparadox those are very temperature-sensitive; it's not easy to drive them that way